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Is the Scala 2.8 collections library a case of “the longest suicide note in history”? [closed]
... Update: The final Scala 2.8 release has a mechanism like the one I described. If you look up BitSet in the scaladocs you find: def map [B] (f: (Int) ⇒ B) : BitSet[B] [use case] Builds a new collection by applying a function to all elements of this bitset.
...
omp parallel vs. omp parallel for
...
I don't think there is any difference, one is a shortcut for the other. Although your exact implementation might deal with them differently.
The combined parallel worksharing constructs are a shortcut for
specifying a parallel construct containing one works...
Difference between “on-heap” and “off-heap”
...lt on top of bloaty frameworks ;-) ) easily require heaps far beyond 4Gb.
One solution to these memory requirements, is to 'offload' parts of the objects to the non-java heap (directly allocated from the OS). Fortunately java.nio provides classes to directly allocate/read and write 'unmanaged' chun...
Insert Update stored proc on SQL Server
...UPSERT - from sqlservercentral.com:
For every update in the case mentioned above we are removing one
additional read from the table if we
use the UPSERT instead of EXISTS.
Unfortunately for an Insert, both the
UPSERT and IF EXISTS methods use the
same number of reads on the table.
T...
What is output buffering?
What is output buffering and why is one using it in PHP?
7 Answers
7
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Is recursion a feature in and of itself?
...eature" he hadn't taught yet, that was wrong.
Reading between the lines, one possibility is that by using recursion, you avoided ever using a feature that was supposed to be a learning outcome for his course. For example, maybe you didn't use iteration at all, or maybe you only used for loops inst...
Using LINQ to concatenate strings
...in the other answer
Use aggregate queries like this:
string[] words = { "one", "two", "three" };
var res = words.Aggregate(
"", // start with empty string to handle empty list case.
(current, next) => current + ", " + next);
Console.WriteLine(res);
This outputs:
, one, two, three
An a...
How to output git log with the first line only?
...g to customize the format for git log . I want all commits to be shown in one line. Each line should only show the first line of the commit message.
I found out that git log --pretty=short should do the trick but on my computer it shows the full log as git log does (besides the time stamp)....
Why is XOR the default way to combine hashes?
...some "noise" if the incoming hashed values are poor (ie, imagine every component hashes to 0 -- the above handles it well, generating a smear of 1 and 0s after each combine. My naive 3*hash(a)+hash(b) simply outputs a 0 in that case).
(For those not familiar with C/C++, a size_t is an unsigned int...
What does void mean in C, C++, and C#?
... and why it is called void. The intention of the question is to assist someone who has no C experience, and is suddenly looking at a C-based codebase.
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